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What Photos Are Needed for a Heat Pump Survey?
A practical photo checklist for installers, surveyors and homeowners.
- Last updated: September 2026
- Heat Loss Hub · For Installers
A useful heat-pump survey photo set should show the property, each relevant room, existing radiators and emitters, boiler and existing plant, cylinder and cylinder cupboard, visible pipework, proposed outdoor-unit location, consumer unit and electrical starting point, loft and insulation where relevant, and important installation routes and constraints.
But taking more photographs does not automatically make the survey better.
KEY TAKEAWAY
A useful survey photo should answer a question, not simply prove that somebody took a photo. The most useful photo sets normally combine three things: Context — where is it? Detail — what is it? Evidence — what technical information does the designer need from it?
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The Three Types of Heat-Pump Survey Photo
A good survey photo set should help the designer understand both the individual component and the property around it.
1. Context Photos
Context photographs show where something is and what surrounds it. Examples include whole room, whole cylinder cupboard, whole plant room, whole external wall, wider garden area and complete access route. These photos help the designer understand the relationship between different parts of the property.
2. Detail Photos
Detail photographs show the component itself. Examples include radiator, cylinder, pump, valve, pipe connection, consumer unit and existing boiler. These images should be close enough to identify what is installed without losing all surrounding context.
3. Evidence Photos
Evidence photographs show a specific technical detail. Examples include manufacturer label, tape measurement, pipe size, insulation depth, nearby window, property boundary and connection arrangement.
KEY TAKEAWAY
Take one photo to show where it is, another to show what it is, and another where necessary to show the technical detail.
Heat Pump Survey Photo Checklist
The exact number of photographs will depend on the property, but the following gives a good starting point.
| Area | Minimum Useful Photo Set |
|---|---|
| Property | Front, rear and relevant side elevations |
| Rooms | Wide room context |
| Radiators | Front, side and room context |
| Boiler | Whole unit, label and pipework |
| Plant | Wide overview plus relevant components |
| Cylinder | Cupboard, whole cylinder, label and connections |
| Pipework | Pipe sections, connections, routes and sizes where possible |
| Outdoor unit | Position, surroundings, openings, boundary, ground and routes |
| Electrical | Consumer unit, meter, supply area and route |
| Loft | General view and insulation where relevant |
| Unusual areas | Context plus detailed evidence |
The aim is not to create the largest possible photo library. The aim is to give the designer enough clear visual evidence to understand the property and the installation constraints.
Property Overview Photos
Start with the property itself. Useful photographs include front elevation, rear elevation, relevant side elevations, extensions, conservatories where relevant, unusual construction and important access routes.
These photographs give the designer a visual orientation before they start reviewing individual rooms and components.
KEY TAKEAWAY
Start wide. Give the designer the same visual orientation they would get when arriving at the property. If the proposed heat-pump location is to the side or rear of the property, make sure those elevations are included clearly.
Room Photos
For each relevant room, take enough photographs to show the room as a space. Useful photographs may include a wide view from the doorway, opposite view where necessary, radiator in room context, large areas of glazing, external doors, open-plan connections and unusual geometry.
A single close-up photograph of a radiator does not explain the room around it.
KEY TAKEAWAY
A room photo should help the designer understand the room, not just show one wall. Where a room is unusually large, open plan or split into different areas, more than one context photograph may be useful.
Radiator and Emitter Photos
If existing radiators are being assessed, each radiator should normally be clearly identifiable. For each radiator, a useful minimum set is:
Photo 1 — Front View
Show the complete radiator.
Photo 2 — Side View
This helps identify number of panels, convector fins and overall type.
Photo 3 — Room Context
Show where the radiator is positioned and how much surrounding wall space is available.
Photo 4 — Measurement Where Useful
Where dimensions are not recorded elsewhere, a photograph with a tape measure can help support height and length.
Also photograph other emitters where relevant, such as towel rails, fan-assisted emitters, underfloor-heating manifolds and other specialist emitters.
KEY TAKEAWAY
Do not take twenty radiator photos with no way of knowing which room they belong to. Each radiator photograph should be clearly linked to the correct room.
For example: “Living Room → Radiator → Side View” rather than “IMG_8473”.
Existing Boiler or Heat-Source Photos
Photograph the existing heat source clearly. Useful photographs include the whole boiler or heat source, manufacturer/model label, pipework underneath or around it, controls and wider location context.
Where relevant, also photograph pumps, zone valves, filters, expansion vessels and other associated plant.
The purpose is not to diagnose the existing boiler. It is to help the designer understand what is installed and how the current system is arranged.
Plant-Room Photos
Plant rooms and utility areas benefit particularly from wide context photographs. Useful images include a wide view from doorway, opposite view where helpful, main pipe routes, pumps, valves, filters, expansion vessel, controls, available wall space and available floor space.
Close-ups are useful for individual components, but they should not replace the wider picture.
KEY TAKEAWAY
A collection of close-ups cannot replace one good photograph showing how the plant fits together. Where possible, photograph the plant area from more than one direction if a single image cannot show the whole arrangement.
Cylinder and Cylinder-Cupboard Photos
The cylinder area often needs several different photographs because both the cylinder itself and the available space matter. A useful set includes:
Photo 1 — Whole Cupboard or Plant Space
Show the entire area.
Photo 2 — Full Cylinder
Show the complete cylinder installation.
Photo 3 — Manufacturer Label
The label should be close enough to read. Useful details may include manufacturer, model, capacity and other relevant product information.
Photo 4 — Connections
Show relevant upper and lower connections where visible.
Photo 5 — Surrounding Pipework
Show how the cylinder connects into the rest of the system.
Also photograph where relevant: immersion heater, controls, pumps, valves, access and surrounding space.
If the proposed new cylinder location is currently empty, photograph the whole proposed space, doorway, access route, floor-to-ceiling context and possible pipe routes.
KEY TAKEAWAY
Take one photograph to show the cylinder and another to show the space around it.
Pipework Photos
Pipework photographs should help establish both what size pipe is visible and how the system is routed. Useful areas to photograph include primary flow and return, boiler connections, cylinder connections, main distribution pipework, microbore, visible branch pipes, route changes, difficult sections and plant-room pipework.
Where pipe size is important and the section is safely accessible, include a tape measure, ruler or other clear size reference.
But avoid photographs that show only a short unidentified section of pipe.
KEY TAKEAWAY
Show the pipe, its size where possible, and where it goes. If pipework disappears below floors, into walls or behind boxing, photograph the visible entry and exit points where possible.
Do not remove insulation, lift floors or dismantle equipment simply to obtain a photograph. If something cannot be seen, record it as concealed or unknown.
Outdoor-Unit Location Photos
The proposed outdoor-unit location is one of the most important areas to photograph properly. A useful photo set may include:
Photo 1 — Whole Area
Show the complete wall, garden or installation area.
Photo 2 — Proposed Unit Position
Show where the heat pump may sit.
Photo 3 — Looking Left
Show surrounding features.
Photo 4 — Looking Right
Show surrounding features.
Photo 5 — Looking Outward
Show the wider boundary and neighbouring context where relevant.
Photo 6 — Nearby Windows and Doors
Make their relationship to the proposed position clear.
Photo 7 — Ground or Base Area
Show the proposed mounting surface.
Photo 8 — Pipe-Entry Point
Show where services may enter the property.
Also photograph where relevant: defrost-water route, drainage possibilities, narrow side access, gates, walls, fences, obstacles, steps and alternative unit positions.
KEY TAKEAWAY
Do not photograph only the square metre where the heat pump might sit. Photograph what surrounds it. This helps the designer understand whether the proposed position works as part of the whole installation rather than only as an isolated location.
Electrical Photos
Electrical photographs should document the existing starting point without encouraging unsafe access. Useful photographs include whole consumer unit, consumer-unit labels where readable, electricity meter, main supply area where safely visible, wider location context, proposed cable route and route toward the outdoor unit.
KEY TAKEAWAY
Never remove electrical covers for a survey photograph. Do not remove consumer-unit covers, expose live electrical parts, open sealed supply equipment, or touch incoming electrical equipment. Only photograph what is safely visible.
The photograph should document the electrical starting point, not turn the survey into an electrical inspection. The final electrical assessment should be carried out by the appropriate competent person.
Loft and Insulation Photos
Where the loft is relevant and safely accessible, photographs can help support information about insulation and construction. Useful images may include a general loft overview, existing insulation, insulation depth where practical, roof construction, relevant pipework, access and unusual areas.
If insulation depth is being recorded, a ruler or tape measure may be useful.
However, nobody should enter an unsafe loft or walk outside properly supported areas simply to obtain photographs. Safety comes first.
Photograph Equipment Labels
Labels can provide valuable technical information. Useful labels may include boiler, cylinder, pumps, existing heat pump, controls and other relevant plant.
A useful label photograph should be in focus, well lit, close enough to read, and taken as square-on as reasonably possible.
Check the image before moving on. If you can read the label while standing there but cannot read it in the photograph, take another one.
Where possible, also take a wider photograph showing which piece of equipment the label belongs to.
Should Measurements Appear in Photos?
Measurements can be useful in photographs where they support the survey record. Examples include radiator height, radiator length, pipe size, cylinder-cupboard dimensions, door width, plant-space dimensions, outdoor clearances and insulation depth.
But the measurement should ideally also be recorded separately.
KEY TAKEAWAY
Photo evidence can support a recorded measurement. It should not be the only place the measurement exists. This makes the information easier to use later and avoids having to zoom into photographs just to retrieve basic dimensions.
When Should You Use Video Instead?
Some parts of a property are easier to understand in motion.
Photos Are Best For
Components, labels, measurements, fixed details and technical evidence.
Video Is Better For
Pipe routes, outdoor unit to plant route, plant-room layout, cylinder cupboard, difficult access, complicated property layouts and relationships between different areas.
For example, a short video walking from the proposed outdoor-unit location to the plant room may explain the route more clearly than several disconnected photographs.
KEY TAKEAWAY
Use photos to show detail. Use video to show how things connect.
How to Take Useful Survey Photos
Survey photographs do not need to look professional. They do need to be clear. A few simple rules help: use good lighting, make sure the image is in focus, start with a wide shot, move closer for detail, check equipment labels are readable, include a measurement where useful, avoid excessive digital zoom, avoid photographing through dirty glass where possible, and retake unclear images immediately.
KEY TAKEAWAY
Check the photograph before leaving the room, not when somebody opens it in the design office. One extra photograph on site is usually much easier than a return visit later.
How Should Heat-Pump Survey Photos Be Organised?
A good photo set should be easy to understand without somebody having to guess what each image relates to. Ideally, each photograph should be associated with:
Project → Area or Room → Component → View
For example: “Living Room → Radiator → Front View”, “Living Room → Radiator → Side View”, “Cylinder Cupboard → Cylinder → Label”, “Rear Elevation → Outdoor Unit → Boundary View”, “Utility Room → Pipework → Primary Flow and Return”.
This is far more useful than a folder containing IMG_8473, IMG_8474, IMG_8475, IMG_8476.
KEY TAKEAWAY
The designer should not have to play detective with the photo library. Good organisation becomes particularly important on larger properties with multiple radiators, bathrooms, plant areas and external locations.
Photos That Look Useful but Aren’t
A photograph can exist without actually providing useful survey evidence. Here are some common examples.
Close-Up of a Cylinder Label Only
Problem: The model may be visible, but there is no information about where the cylinder is installed, available space, access or pipework.
Better: Take the label photo plus a full cylinder and cupboard view.
Close-Up of the Proposed Outdoor Wall
Problem: The photograph does not show boundaries, windows, doors, ground, access or surrounding space.
Better: Step back and photograph the whole area first.
Radiator Front View Only
Problem: The photograph may not clearly show panel type, convector fins, available wall space or room identification.
Better: Take front, side and room-context views.
Close-Up of One Piece of Pipe
Problem: The designer may not know where the pipe is, what it connects to, or where it runs.
Better: Take a context photograph as well as the detail.
Consumer Unit Photographed From Across the Room
Problem: Important visible information cannot be read.
Better: Take one context image and one closer, safely taken photograph.
Twenty Unnamed Radiator Photographs
Problem: Nobody can confidently match each radiator to the correct room.
Better: Associate each photograph with the room and component when it is taken.
KEY TAKEAWAY
More photos do not automatically mean better survey evidence.
What if Something Cannot Be Photographed?
Some parts of the property may be concealed, inaccessible, unsafe to reach, hidden behind fixed finishes, or inside equipment that should not be opened.
Do not create unsafe or destructive work simply to obtain an image. Instead: mark it as not visible, explain why, add a survey note, provide alternative evidence where available, and flag it for verification if technically important.
KEY TAKEAWAY
“Not visible” is better survey information than a photograph that pretends to prove something it cannot show. Uncertainty should remain visible until it is resolved.
How Do You Know When the Photo Set Is Complete?
Before submitting the survey, ask: can the property be understood from the photographs? Can each radiator photo be matched to a room? Can important equipment labels be read? Is the plant arrangement visible? Is the cylinder and surrounding space visible? Are important pipe routes understandable? Is the outdoor-unit location shown in context? Are nearby windows, doors and boundaries visible? Is the electrical starting point documented? Are important installation routes understandable? Are concealed or unknown areas clearly identified?
The result should be one of two things: Photo set complete, or Additional evidence required.
That is far better than discovering missing evidence after the design work has started.
Who Can Take the Survey Photos?
The photographs may be taken by the installer, a surveyor, the homeowner, a builder, or another suitable site contact. The important point is that the photographs are clear, correctly identified and suitable for the information they are intended to provide.
KEY TAKEAWAY
For customer-led surveys: the customer provides the evidence. The installer and designer decide what that evidence means. Customers can take useful survey photographs without being expected to make technical design decisions.
Explore: Customer Self-Survey for Heat Pumps
Frequently Asked Questions
A typical survey photo set may include property elevations, room context, radiators, existing boiler, plant area, cylinder, pipework, outdoor-unit location, consumer unit, meter, loft/insulation, and important routes and constraints. The exact requirements depend on the property and design scope.
If the existing radiators are being assessed for retention, each relevant radiator should normally be clearly photographed and identified.
A useful minimum is usually front view, side view and room context. A measurement photograph may also be useful where dimensions are not recorded separately.
Useful photographs include whole cupboard, full cylinder, manufacturer label, connections, surrounding pipework and available space.
Photograph the whole proposed area, unit position, left and right context, windows and doors, boundary, ground, pipe-entry point, access and possible service routes.
Useful images include consumer unit, electricity meter, safely visible supply area, location context and proposed cable route. Never remove electrical covers simply to obtain a photograph.
Yes, where relevant. Take one image showing its location and another closer image if visible information needs to be recorded. Do not remove the cover.
Yes, where pipework forms part of the survey. Photograph important visible sections, routes, connections and pipe sizes where possible.
They can be useful as supporting evidence. But important measurements should ideally also be recorded separately.
Where loft construction, insulation or pipework is relevant and the loft can be accessed safely, photographs can be useful.
Yes. Labels can help identify make, model, capacity and other technical information. Make sure the image is readable.
Not necessarily. Photos are usually better for fixed technical detail. Video is particularly useful for routes, spatial relationships, plant areas and difficult access. The two can be used together.
Yes. A homeowner can often provide useful property photos, room photos, radiator photos, cylinder photos, outdoor-location photos and safely visible electrical photos. Technical interpretation should remain with the installer or designer.
Record it as concealed, not visible, or unknown. Do not invent information simply because it cannot be photographed.
Ideally use a structure such as Room → Component → View. For example: Bedroom 2 → Radiator → Side View.
There is no fixed number. A smaller number of well-organised, useful photographs is better than a very large collection of unclear or unidentified images.
Make the Survey Photographs Useful to the Designer
A good heat-pump survey photo set should provide Context — where is it? Detail — what is it? Evidence — what does the designer need to know about it?
The aim is not to take the largest number of photographs. The aim is to provide enough clear, organised evidence for the designer to understand the property without unnecessary questions, missing information or repeat visits.
A designer should never have to ask: “What am I looking at?”
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Use the field checklist to make sure the whole survey, not just the photos, is ready for design.
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